If the child has a bacterial infection with high fever that does not go away, this situation needs to check the blood routine, C-reactive protein, calcitoninogen, to see the degree of infection, if the infection is relatively mild, can be treated by oral antibiotics, such as penicillin, cephalosporins or macrolides. If the infection is serious, I am afraid that the effect of oral medication alone is not very good, in this case it is necessary to apply intravenous antibiotic treatment, usually through intravenous antibiotic treatment after 3-5 days, the symptoms will have a significant improvement, the fever will also be reduced. If the body temperature exceeds 38.5 degrees, you need to take oral antipyretic drugs such as ibuprofen and Tylenol; if it does not exceed 38.5 degrees, you can use physical cooling by scrubbing the forehead, armpits, groin and other parts of the body rich in large blood vessels with warm water.